Windmill



(N0 Modem 2 Sheets-Sheet N. P. HESS &'G. VESTERGARD.

WIND MILL.

No. 396,084. Patented Jan. 15, 1889.

2 N. P. HESS & C. VESTERGARD.

No. 396,084. Patented Jam-15, 1889.

" UNITED STATES PATENT OFFICE.

NELS PAULSON HESS AND CHRIS. YESTERGARD, OF BELGRADE, MINNESOTA.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 396,084, dated January 15, 1889.

Application filed April 9, 1888. Serial No. 270,146. (No model.)

To all whom it may concern.-

Be it known that we, NELS PAULSON HESS and Crime. VESTERGARD, citizens of' the United States, residing at Belgrade, in the county of Stearns and State of Minnesota, have invented certain new and useful Improvements in Wind-WVheels, of which the following is a specification.

Our invention relates to improvements in wind-wheels; and it consists in certain novel features, hereinafter described and claimed.

In the accompanying drawings, whichfully illustrate our invention; Figure 1 is a side elevation of our improved windmill. Fig. 2 is a horizontal section of the same. Fig. 3 is a front view of the wheel, and Fig. 4 is a detail view of a portion of the upper end of the tower. Fig. 5 is an enlarged perspective of the entire windmill.

Referring to the drawings by letter, A designates the tower, composed of the usual converging posts or standards, B, and braces C, as shown. At the upper ends of the posts we secure the circular plate, ring, or platform D, having a central circular opening through which the turn-tableE passes. This turntable is composed of a series of vertical posts F, connected at their 'ends and centers by the horizontal circular plates G, thereby forming substantially an open cylindrical column. The central circular plate G is provided with rollers H at various points around its peripher which rest upon an internal annular shoulder, I, of the platform D and support the turn-table so as to permit the free rotation of the same.

The rudder or vane J is hinged to one side of the turn-table and projects outward therefrom. It is braced by means of the rods or arms K, as shown, and to said arms is secured a cord, L, the central portion of which is passed tightly around a wheel, M, suitably supported within the turn-table and meshing with a vertical rack-bar, hl, as shown. This rack-bar is secured to the upper end of a link or connecting-rod, O, which extends downward through the turn-table to a point below the same, where it is secured to a collar, P, sliding on the main shaft of the gearing, the said collar being further secured to the upper end of a vertical pitman, Q. The lower end of this pitman is pivoted to the inner end of the operating-lever R, which is fulcrumed upon the tower near the base of the same, and

has its outer end moving over and engaging a vertical curved notched bar, S, as shown.

The wheel-shaft T is journaled in suitable bearings, U, on the upper end of the turn-table, and a vertical bevel gear-Wheel, V, is

mounted rigidly on said shaft between its bearings and meshes with a horizontal bevel gear-wheeL-NV, on the upper end of the main shaft X. The wheel Y is mounted on one end of the shaft T, as shown. The said wheel consists of a series of arms, Z, radiating from the shaft and forming the base of the wheel, and a series of forwardly-converging bars, a, extending from near the outer ends of the radial arms Z to a small circular disk, I), on-

the front end of the wheel-shaft. The sails or rial, having their front ends secured to the front ends of the converging bars and their rear ends secured to the outer ends of the radiating arms. The rear ends of the blades are secured to the radial arm next to the arm directly behind the front end of the blade,

thereby giving the blade a spiral twist or turn, so as to utilize the full strength of the wind.

The lower end of the main shaft X is provided with a gear-wheel, cl, meshing with a similar wheel, 6, on the end of a shaft, f, by means of which the power and motion of the wind-wheel are communicated to the driven machinery.

In operation the wheel is turned so as to 0 present its face to the wind, and the wind, striking against the blades of the wheel, will cause it to revolve, the motion thus imparted to the wheel being communicated directly to the shaft, and by means of it and the gearing described to the machinery to be driven. lVhen it is desired to stop the wheel, the rackbar N is raised vertically, thereby rotating the wheel M and causing the same to draw upon the vane or rudder through the cord L.

The vane will thus be caused to present its side to the wind, which will act on the same and cause it to swing around, thereby rotatlng'the turn-table so as to present the edge of the wheel. and of the Vane to the wind. 5

' Vertical sleeve or tube g, through which the Upon lowering the rack-bar the vane will he again turned with its side to the wind, and

the wheel will he brought into the wind, thereby again putting the nmchinery in motion. It will thus be seen that the wheel can he held in or out of the wind for any desired length of time, and. also that it can be held at a greater or less angle to the wind, the notched bar serving to lock the operm ing-levcr in its adjusted position.

It will be seen from the foregoing that we have provided a very strong and durable In order to guide and protect the main driving-slmift and the vertical conneeting-rmi, we provide the turn-table with the central said rod and shaft pass, as shown.

Having thus described our invention, we chtim The combination of the turn -1z1hle, the wheel mounted thereon, the vane hinged to the turn-table, the cord secured to the Vane and mssin aroun d the wh eel, and the vertiwily-movable ruck-bar meshing with said wheel, as and for the DHTPOSGS specified.

wind-wheel, which is very simple in eonstruc- 1 tion and efficient in operation, and its advantages are thong-ht to he obvious.

NE'LS IAI' 'LSON HESS. (H.Rlh. ES'IE'RGART). \Vitnesses:

DANIEL J. LEARY, Mnn'rln llALVORSUN. 

